Docker-commands.sh

docker-machine create default

# this I think not needed because it was started on create?:
# docker-machine start default 

eval $(docker-machine env default)

# create/start docker containers based on docker-compose config files
docker-compose up


# list docker docker-machines (houses the containers)
# on mac it can be a VirtualBox virtual machine, more info here:
# https://docs.docker.com/docker-for-mac/docker-toolbox/
docker-machine ls

# list of containers
docker ps

# open shell in docker container
docker exec -it <container_id> /bin/sh
# open root shell in docker container
docker exec -u 0 -it mycontainer bash

# view open ports inside container
netstat -tulpn | grep LISTEN

# # view open ports from host OS
netstat -an | grep LISTEN

################
# this is all to try to debug issue with not being able to site hosted inside docker
# Problem is that OSX not listening on port.. similar issue here:
# https://github.com/docker/for-mac/issues/3350

###############
# Finally was able to resolve this by using the correct IP address from the host OS
# instead of using localhost, it was necessary to use the IP returned by 
# the `docker-machine env default` command.


# command for forwarding local port into virtualbox (needed if you want to access services inside
# virtualbox using 'localhost' for example)
# https://www.virtualbox.org/manual/UserManual.html#natforward
VBoxManage modifyvm "VM name" --natpf1 "guestssh,tcp,,2222,,22"

# and then to remove it:
VBoxManage modifyvm "VM name" --natpf1 delete "guestssh"




#Connecting out to host from guest:

In host:
python -m SimpleHTTPServer 8001

Next 
curl 192.168.99.1:8001

From inside guest (get IP from 'File > Network administrator' in virtual box)






# install package on guest:
apt update
apt install <package>